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Campbell Island/Motu Ihupuku, 650 km SW of New Zealand, was surveyed for freshwater invertebrates during the austral summer of 2010/11 as part of the Campbell Island Bicentennial Expedition. Aquatic oligochaetes constituted a considerable proportion of the species collected. A total of 19 species were recorded, including 6 Naididae, 9 Enchytraeidae, and 4 Phreodrilidae, bringing the total number of microdrile species known fro...
An Evolutionary Mosaic Challenges Traditional Monitoring of a Foundation Species in a Coastal Environment—The Baltic Fucus vesiculosusNARA Subscribed
During periods of environmental change, genetic diversity in foundation species is critical for ecosystem function and resilience, but it remains overlooked in environmental monitoring. In the Baltic Sea, a key species for monitoring is the brown seaweed Fucus vesiculosus , which forms sublittoral 3D habitats providing shelter and food for fish and invertebrates. Ecological distribution models predict a significant loss of Bal...
Genome‐Wide Adaptation to a Complex Environmental Gradient in a Keystone Phytoplankton SpeciesNARA Subscribed
Marine phytoplankton play essential roles in global primary production and biogeochemical cycles. Yet, the evolutionary genetic underpinnings of phytoplankton adaptation to complex marine and coastal environments, where many environmental variables fluctuate and interact, remain unclear. We combined population genomics with experimental transcriptomics to investigate the genomic basis underlying a natural evolutionary experime...
The global COVID-19 pandemic resulted in many jurisdictions implementing orders restricting the movements of people to inhibit virus transmission, with recreational angling often either not permitted or access to fisheries and/or related infrastructure being prevented. Following the lifting of restrictions, initial angler surveys and licence sales suggested increased participation and effort, and altered angler demographics, b...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
Forty‐nine blue‐finned mahseer ( Tor sp.; mean total length 458 ± 20 mm) were angled using a range of bait/lure types, angling and air exposure times in water that averaged 27 ± 2 °C over the course of the assessment. No cases of mortality were observed, and rates of moderate and major injury were low, with 91% of mahseer hooked in the mouth. More extreme physiological disturbances (i.e. blood lactate, glucose, pH ) in mahseer...
The use of passive integrated transponder technology facilitated the first observations of the autumn migration of 0+ year Atlantic salmon Salmo salar parr into tidal rearing habitats in the U.K. The quality of these habitats in relation to smolt production and the ecological significance of this alternative life‐history strategy are presently not understood.
Ontogenetic induced shifts in the ecology of sunbleak Leucaspius delineatus during early developmentNARA Subscribed
Using the non‐native sunbleak Leucaspius delineatus as a model, the relationship between ontogeny and ecology was studied with a view to identifying specific morphological and physiological processes involved in influencing ecological niche shifts. Following a predefined saltatory model for the early ontogeny of sunbleak, field studies examined the temporal use of microhabitat, diet and morphological changes throughout early d...
A cross‐river antenna array for the detection of miniature passive integrated transponder tags in deep, fast flowing riversNARA Subscribed
A novel cross river, self cleansing system for the remote monitoring of downstream and upstream migration of PIT tagged fishes past a fixed point in deep, fast flowing rivers is described.
Early ontogeny of sunbleakNARA Subscribed
The early development of sunbleak Leucaspius delineatus , from activation of ovum to juvenile, was recorded using both living and preserved materials. Five embryonic steps, one free embryo and five larval steps were identified. Hatching occurred between 73 h 25 min and 85 h 25 min (post‐activation); the free embryo period was extremely short in duration (3–16 h). The transition from larva to juvenile occurred in c . 96 days wh...
The spawning behaviour of male nest guarding sunbleak Leucaspius delineatus , a recent invasive species in southern England, was studied and quantified for the first time. In the absence of physical differences between territorial and non‐territorial males ( i.e . colour, size, etc .), the reproductive behaviour of territorial males was analysed and related to reproductive success. The results showed that females preferred hig...
Pseudorasbora parva has demonstrated, in less than four decades, its invasive potential by colonizing much of continental Europe. Established populations of P. parva have now been found in the wild, in large numbers, at several locations across England. At present, only one deliberate introduction is known to have taken place during the mid‐1980s at Crampmoor Fisheries, Hampshire.
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